Patents by Inventor Istvan Szepessy

Istvan Szepessy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the acid-base disinfection of rice seeds
    Patent number: 4817333
    Abstract: The present invention relates to a process for the disinfection of seeds, especially rice which comprises applying an acidic solution onto the surface of seeds, thereafter neutralizing the effect of the acid by the addition of an alkaline powder.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: April 4, 1989
    Assignee: Debreceni Mezogazdasagi Gepgyarto Vallalat
    Inventors: Istvan Szepessy, Ferenc Tundik, Istvan Gyurk, Ibolya S. nee Kiss
  • Water-soluble 1 and/or 2 acid alkylene imidazoles
    Patent number: 3978217
    Abstract: Compounds of the formula, ##SPC1##WhereinR.sup.1 and R.sup.2 each stand for hydrogen or a group of the generalformula --(CH.sub.2).sub.n --SO.sub.3 H,n is an integer between 1 and 5, andR.sup.3 stands for an alkyl group,As well as the salts and quaternary salts thereof have been prepared by various methods. The new compounds according to the invention possess valuable fungicidal and/or ovicidal properties, and can be used as active ingredients of plantbiological compositions, cosmetics and pharmaceuticals, respectively.
    Type: Grant
    Filed: January 30, 1975
    Date of Patent: August 31, 1976
    Assignee: Chinoin Gyogyszer-es Vegyeszeti Termekek Gyara RT
    Inventors: Sandor Szoke, Gyorgy Lugosi, Gyorgy Csermely, Maria Bakonyi, Tibor Zsolnai, Istvan Szepessy